alt Hacker NewsI guess my point is that I don't need to think for long before I find an example justifying why physics is a serious field.
What would be the equivalent of Newton's laws in psychology? Does such a thing exist? Or does the whole field just prove how complicated human beings are by being incapable of proving anything else (which in itself would be an interesting result, don't get me wrong)?
Physics is an exact, quantitative, natural science. Psychology is neither exact, quantitative (usually), nor a natural science. They are not comparable. But like many other fields of study that are not hard sciences, psychology can still be useful and valuable. (Note the "can". Given the replication crisis, how much of psychology actually is I cannot say.)